According to him, it is assumed that within a year or two years, specialists will be able to vaccinate all risk groups, as well as patients who have suffered the disease, and those people who have developed an insufficient immune response to COVID-19 after vaccination.
“Accordingly, they also need to be vaccinated again or vaccinated after an illness.
The only difficulty is that we do not yet have criteria on the basis of which we must vaccinate those who have been ill, ”TASS quotes him.
Lioznov added that the need for re-vaccination against COVID-19 depends on the level of immunoglobulin in the blood, on the cellular response of the body, as well as on a number of other factors.
Earlier, Lioznov said that new mutations of the coronavirus are transmitted more easily, but do not cause a more severe course of the disease.